Attachment for track-lifting machines



March 2 1926.

Y E. E. PETERSON ATTACHMENT FOR TRACK LIFTING MACHINES Original FiledSept.

Patented Mar. 2, 1926.

UNITED STATES PATENT OFFICE.

` ERNEST E. PETERSON, or cansan LAKE, MINNESOTA.

ATTACHMENT FOR TRACK-LIF'IING MACHINES. v

Application filed September 8, 1924, Serial No. 736,533.

'with power driven mechanism for Vbodily raising the car, tracks, andties, and for shifting the same laterally.'

The object of this invention is to provide4 in a machine of this kindsimple and efficient means for controlling tilting movement of the carand tracks while the same are elevated.

Heretofore, because of unequal distribution of weight between the rails,it has been diliicult to control tilting during the lifting operation sothat the lower ends oi' the ties have had a tendency to dier into theground and thus oppose or stop lateral movement of the mechanism.y It isalso practically impossible with the old types of such machines tomaintain the ties `in horizontal position or at a predetermined slopewhile elevated, as is desirable in order to simplify tamping and gradingthe road bed. The present invention obviates these diiiiculties andmakes it possibleito raise and carry the ties in horizontal position orat any desired angle. v

This invention is particularly, although notexclusively, adapted to beapplied to a machine of the type described and claimed in United StatesPatent No. 1,264,37 6, dated April 30, 1918 granted to C, H. De Vey andErnest E. Peterson.

ln the accompanying drawings which illustrate the best form of thisinvention at present known to me, Figure 1 is an end view of a car withmy device `mounted thereon; Fig. 2 is a plan view of the inventionshowing a fragmentary portion of the supporting car; Fig. 3 is anenlarged, transverse section through the brake shafts; and Fig. 4 is alongitudinal, vertical section through the brake drums showing one ofthe supporting shafts partially in longitudinal section.

Referring to the drawings, I have used the numeral 5 to indicate a carhavilg a Renewed January 14, 1926.

platform 6 adapted to support the lifting mechanism. This car isprovided with suitahle clamping hooks 7 adapted to engage the rails 8which are secured to ties 9. Mounted centrally on the car 5 is a thrustboom 10 provided at its base witha pedestal 11 adapted to be thrustdownward against the surface of the ground between a pair of the ties 9.The boom 1C may be actuated by any suitable mechanism such the pinion 12which meshes with u rack Y 13 indicated diagrammatically in Figs. 1 and2. The shaft carrying the pinion 12 may be connected through suitablegearing, such as that shown in the above mentioned Patent No. 1,264,376,with a motor v(not shown) carried on the platform 6. A pin 14 pivotallyconnects the boom l() and pedestal 11 so that when the said boom isthrust downward to raise the car, traeks and ties, the elevatedmechanismfmay be swung laterally upon said pin. V Y

To control or prevent tilting upon the pin 14 while the car and attachedmechanism is being lifted, I provide cables or chains 15 and16 which areseverally con nected `at their lower ends to the lateral extremities ofthe pedestal 11. These, cables extend substantially vertically from thepedestal 11 and. are severally wound upon shafts 17 and 18. The shaft 18hasta tubular form and encases a reduced portion of the shaft 17.Suitable journal bea-rings 19 support the ends of the shafts 17 and `18.Severally fixed upon the shafts 17 and l19 -near one side ofthe car arebrake drums 20, provided on their peripheries with brake bands 21adapted to be actuated by levers 22 and 23 respectively. One end, ofeach of the bands 21 is rigidly supported upon a bracket 24, while the.opposite endsof l said bands are attached to thelevers 22 and 23, so asto be actuated thereby to apply or` release the brakes, y

To normally wind the cables 15 and 16 upon the shafts 17 and 18, springactuated cables 25 are wound upon said, shafts in a direction oppositeto the winding of the cables 15 and 16.` The cables 25 are maintainedunder tension by coiled springs 26, which are fixed at their lower endson the car frame.

Operation.

ln operation, as the boom 10 is thrust downward to raise the car andtracks, the

ioo

cables 15 and 16 are unwound from the shafts 17 and 18 and rotate saidshafts to wind the cables 25 thereon againstY they action of the springs26; When, as is usually the case, the loads upon the sides of the carare unequal, one side will have a tendency to rise first and to turn oneofv the shafts 17 or 18 before or vfaster than the other. TWhere thetilting or' the car thus caused is undesirable, it may be prevented orlimited by merely actuating one or the other of the brali'e levers Q2and as will new be readily understood, when mie ot these levers isactuated, a brake will be applied. so as to stop or retard rotatioi-i otthe connected shaft. Thus, even where the load is very unequallydistrilfiuted, the operator may cause the car to be raised liori-Izontally or in any desired tilted positien by proper manipulation oftlic levers 22 and 23. When the car and track is lowered by retractingthe boom 10, the cables 15 and 1 6 will again be wound on the shafts 17and 18 by the action o'l the cables 25 and springs 26.

(.lbviously, chains or vother connecting means might be employed inplace ci? the cables 15, 16 or Qand any such substitution of means isconsidered within tliespirit ol my invention.

Having described my invention what I claiinas new and desiif'e 'toprotect by Letters Patent is: l y

1. The combination with aV railway cai' adapted to be attached to thesupporting rails and provided with an independent support adapted to beengaged to raise the car and rails, of means severally connectingopposite side portions of said support with the sides of said car, andmeans for severally stopping or retarding the movement of saidconnecting means relative to said car while said car is raised on saidsupport. l

2. The combination with a railway car adapted to be clamped on thesupporting rails and provided with a pedestal and a boom adapted to beengaged to raise tlie car and rails, of meansy severally connecting thesides ofl said pedestal with the sides oi' `said car and means foryseverally retarding or-stopping the-movement of said connecting meansrelative to said car during the upward movement of said car on said boomLeraars whereby lateral tilting of the carmay be limited or prevented.

The combination with a railway car adapted t0 be secured to, thesupporting rails and provided with thrust means for simultaneouslyraising the car and rails, of independently revoluble shafts on saidcar, tieiiible meansA severally ccnneeting said shafts with oppositesides of said thrust means, and means for severally retarding orstopping rotation ot said shafts.

4l. The combination with a railway cary adapted to .be clamped on thesupporting rails and provided with va pedestal and a beam adaptedto beengaged to raise the .car and rai-ls, of independently revoluble shaftson said car, flexible means vseverally connecting said shafts withopposite sides of said pedestal and means for severally retarding orstopping rotating of said shafts whereby lateral tilting of the car maybe limited or pre vented. x Y

The combination with a railway .car adapted to be secured te thesupporting rails and provided withl a pedestal and a boompivotallyjoined to said pedestal and adapted to be engagedto raise thecar and rails, of flexible means severally connecting the side portionsof said pedestal with the side portions of saidcar, springsadapted tomaintain said yflexible meansunder tension, and means for severallyretarding and stopping the movement of said connecting means relative tosaid car during the upward movement of said car on said boom wherebylateraltilting of the car on said pedestal may be limited or prevented.

6. The combination with a railway 'car adapted to be secured to thesupporting rails and provided'with lthrust means for simul-` taneouslyraising the car and rails of independently revoluble shafts on said car,flexiblev means arranged to be severally wound on said shafts andsecured to with opposite side portions of said thrust means and brakes'for severally retarding or stopping rotation o'l`; said shafts wherebytilting of the car relative to the thrust means may be controlled.

In testimony whereof, I have lhereunto signed my naine to thisspecification.

ERNEST E. PETERSON.

